/**
 * Copyright 2019-2020 Huawei Technologies Co., Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "graph/passes/reshape_remove_pass.h"

#include "graph/passes/pass_utils.h"

namespace ge {
namespace {
const int kReshapeDataIndex = 0;
const int kReshapeShapeIndex = 1;
}  // namespace

Status ReshapeRemovePass::Run(NodePtr &node) {
  if (node == nullptr) {
    GELOGE(FAILED, "parameter is null.");
    return FAILED;
  }
  if (node->GetType() != RESHAPE) {
    return SUCCESS;
  }
  GELOGD("Remove reshape node %s", node->GetName().c_str());
  auto ret = PassUtils::UnlinkNodeWithControlCopy(node, kReshapeShapeIndex);
  if (ret != SUCCESS) {
    GELOGE(INTERNAL_ERROR, "Failed unlink shape edge for reshape node %s", node->GetName().c_str());
    return ret;
  }
  return IsolateAndDeleteNode(node, {kReshapeDataIndex});
}
}  // namespace ge
